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Granular Activated Carbon
What is Granular Activated Carbon?
Granular activated carbon (GAC) is an adsorptive media that excels at reducing a wide range of contaminants from water.
How it Works
Prior to treatment with GAC, suspended solids must be removed from the water so that the GAC bed is not turned into a filtration bed. Once water meets pre-treatment specifications, it is pumped under pressure through a bed of granular activated carbon media. Contaminants adsorb on to the GAC media and are captured in the bed. Bed life can be modeled in the lab or monitored at full-scale. Oftentimes, a lead-lag configuration is utilized to prevent breakthrough of target contaminants. Once contaminants are detected in between the lead and lag vessels, the bed positions can be swapped or media can be replaced per client preference.